A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6135-00-299-6918
NSN 5930-00-829-1497
NSN 5935-01-212-2569
NSN 6135-01-116-3385
NSN 5855-01-191-3404
NSN 6240-00-159-4403
NSN 6145-01-650-5713
NSN 5998-01-348-9898
NSN 6110-01-629-9557
NSN 6130-00-470-5195
NSN 5960-01-252-8821
NSN 6110-01-604-8811